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<html>

<head>
<meta http-equiv='Refresh' content='3;URL=${ctx}/'>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>404 错误</title>
</head>
<body>
<p>此页面正在开发中...</p>
<p>系统将在 <span style="color:red;">3</span> 秒后跳转到首页，或者直接点击
 <a href="javascript:history.back()">返回</a>
</p>
</body>
</html>